US 30 Spur N B over I-88
FairWhiteside County, Illinois · 3.5 MI W Rock Falls · Structure no. 098007800000000
- Built
- 1972
- 53 years old
- Condition
- Fair
- inspected October 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 262 ft
- 2 main spans
- Daily traffic
- 4,100
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
US 30 Spur N B over I-88 is a steel continuous stringer/multi-beam or girder carrying US 30 Spur N B over I-88 in Whiteside County, Illinois. It was built in 1972, so it is 53 years old, older than the Illinois average of 45.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 4,100 vehicles a day, roughly 35% of them trucks, projected to reach 2,071 by 2046. The structure is 262 ft (80 m) long and 28 ft wide. If it were closed, the detour would be 6.2 mi (10 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 30 Spur N B over I-88 built?
It was built in 1972, making it 53 years old in 2025.
What condition is US 30 Spur N B over I-88 in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2024.
How much traffic does US 30 Spur N B over I-88 carry?
About 4,100 vehicles per day (2021 count), of which roughly 35% are trucks.
How long is US 30 Spur N B over I-88?
The structure is 262 ft (80 m) long with a longest span of 108 ft (32.9 m) and a deck 28 ft wide.
Who owns US 30 Spur N B over I-88?
It is owned by the State Highway Agency.